Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
The arrival of May brings a change in Massac's weather, with average high-temperatures moving from April's refreshing 67.5°F (19.7°C) to a warm 76.5°F (24.7°C). Nighttime temperature dips to a mean of 59.2°F (15.1°C) during May.Humidity
March and May, with an average relative humidity of 79%, are the most humid months.Rainfall
In May, the rain falls for 16.4 days. Throughout May, 2.4" (61mm) of precipitation is accumulated. Throughout the year, there are 137 rainfall days, and 22.64" (575mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
The average length of the day in May is 14h and 10min.On the first day of May in Massac, sunrise is at 5:59 am and sunset at 7:44 pm. On the last day of the month, sunrise is at 5:36 am and sunset at 8:08 pm CDT.
Sunshine
In May, the average sunshine is 9.4h.UV index
In May, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 6 during May translates into the following directions:
Resist overexposure. Safeguarding from solar damage is indispensable. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in May?
What are the most humid months?
What is the average humidity in May in Massac?
How many days does it rain in May?
When it does not snow?
Does it snow in May?
What is the average length of the day in May?
What time are sunrise and sunset in May?
How many hours of sunshine does Massac have in May?
What is the UV index reading in May?
Average temperature in May
Massac, KY
- Average high temperature in May: 76.5°F
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (41.5°F).
- Average low temperature in May: 59.2°F
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).
Average pressure in May
Massac, KY
- Average pressure in May: 29.98"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in May
Massac, KY
- Average wind speed in May: 7.5mph
The windiest month (with the highest average wind speed) is January (9mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in May
Massac, KY
- Average humidity in May: 79%
The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (69%).
Average rainfall in May
Massac, KY
- Average rainfall in May: 2.4"
The wettest month (with the highest rainfall) is April (2.52").
The driest month (with the least rainfall) is September (0.91").
Average rainfall days in May
Massac, KY
- Average rainfall days in May: 16.4 days
The month with the highest number of rainy days is May (16.4 days).
The month with the least rainy days is January (8.1 days).
Average snowfall in May
Massac, KY
- Average snowfall in May: 0"
The month with the highest snowfall is February (1.02").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Massac, KY
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (2.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Massac, KY
- Average daylight in May: 14h and 1min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in May: 9h and 2min
The months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The months with the least sunshine are January and February (Average sunshine: 4h and 42min).
Average sunshine days in May
Massac, KY
- Average sunshine days in May: 12.8 days
The month with the most sunshine days is October (21.3 days).
The month with the least sunshine days is May (12.8 days).
Average UV index in May
Massac, KY
- Average UV index in May: 6
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in May
Massac, KY
- Average cloud cover in May: 38
The month with the most cloud cover is February (Cloud cover 50).
The months with the least cloud cover are June and September (Cloud cover 27).
Average visibility in May
Massac, KY
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Massac, Kentucky, USA
Weather forecast for your location
2. Allow the app to use your location